google

Google: Gemini 3.8 Flash

Gemini 3.8 Flash is a Google model that accepts text, image, video, audio, and file inputs, which makes it suitable for mixed-media workloads without separate preprocessing pipelines. It offers a context window of 1,048,576 tokens and can return up to 65,536 tokens per response, enough to handle long documents or extended transcripts in a single pass. It supports tool calling and a reasoning mode; structured output support is not listed in the available data. At $0.75 per million input tokens and $3.75 per million output tokens, it suits teams that need broad input coverage and long context. Output-heavy tasks will cost noticeably more than input-heavy ones. Its blended benchmark score of 69.0 comes from a single independent benchmark, so its standing against competitors is only partially established. Shortlist it for multimodal or long-context work, but run your own evaluations before committing, since one benchmark offers a thin basis for comparison.

Quality Score
100/100
price + capability + benchmarks
Input Price
$0.75
per 1M tokens · checked 2026-10-13
Output Price
$3.75
per 1M tokens · checked 2026-10-13
Context Window
1,048,576
tokens

Benchmark results

Independent, published benchmarks. Blended score 69.0 across 1 benchmark, last refreshed 2026-10-13. How scoring works →

BenchmarkMeasuresScore
AI Index broad capability composite 67.5
Model ID
google/gemini-3.8-flash
Vendor
google
Released
September 2026
Tokenizer
Gemini
Input Modalities
text, image, video, file, audio
Output Modalities
text
Max Output
65,536 tokens
Tool Calling
✓ supported
Structured Output
✓ supported
Reasoning Mode
✓ supported
Vision
✓ accepts images
Audio
✓ accepts audio
Moderated
no

What it costs in practice

Computed from the current $0.75/M input and $3.75/M output rates. Run your own numbers →

JobTokensCost
Summarize a 50-page report 30k in / 1.5k out $0.03
Classify 1,000 customer emails 500k in / 50k out $0.56
A month of a busy support chatbot 5M in / 2M out $11.25

Strong choice for

Category rankings

Where Google: Gemini 3.8 Flash places across the 7 categories it ranks in. How we rank →

#CategoryScore
#4 TranscriptionVoice · of 25 ranked 123
#6 TTS ReplacementVoice · of 25 ranked 115
#7 Audio SummarizationVoice · of 25 ranked 148
#7 Video Auto-TaggingVideo · of 25 ranked 123
#9 Image CaptioningVision · of 25 ranked 121
#14 Video SummarizationVideo · of 25 ranked 148
#21 Trivia & General KnowledgePersonal · of 25 ranked 116

Similar models

Quick answers

How much does Google: Gemini 3.8 Flash cost?
$0.75 per million input tokens and $3.75 per million output tokens.
What is Google: Gemini 3.8 Flash's context window?
1,048,576 tokens, roughly 1,572 pages of text in a single request.
Does Google: Gemini 3.8 Flash support tool calling?
It supports tool calling, structured output, a reasoning mode.
Can Google: Gemini 3.8 Flash process images?
Yes, it accepts image input.

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